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| 1 | +#!/usr/bin/env perl |
| 2 | +use strict 'refs'; |
| 3 | +use warnings; |
| 4 | +use Text::CSV; |
| 5 | +use Text::CSV::Encoded; |
| 6 | +use File::Basename; |
| 7 | +use Scalar::Util qw(looks_like_number); |
| 8 | + |
| 9 | +sub usage { |
| 10 | + my $base = &basename($0); |
| 11 | + print STDERR "Usage: $base <ranking.csv>\n\n"; |
| 12 | + print STDERR " Converts ballots in ordering format into CIVS format.\n"; |
| 13 | + print STDERR " For example, a file containing:\n\n"; |
| 14 | + print STDERR "a,b,c,d\n"; |
| 15 | + print STDERR "c,a,b,e\n"; |
| 16 | + print STDERR "a,c,b,d\n"; |
| 17 | + print STDERR "\n produces output as follows:\n"; |
| 18 | + print STDERR ' |
| 19 | +### list of choices ### |
| 20 | +a |
| 21 | +b |
| 22 | +c |
| 23 | +d |
| 24 | +e |
| 25 | +### ballots ### |
| 26 | +1,2,3,4,- |
| 27 | +2,3,1,-,4 |
| 28 | +1,3,2,4,-', "\n"; |
| 29 | + |
| 30 | + exit 1; |
| 31 | +} |
| 32 | + |
| 33 | +my $nl = "\r\n"; |
| 34 | +my $csv = Text::CSV::Encoded->new({ encoding_in => "UTF-8", |
| 35 | + encoding_out => "UTF-8" }); |
| 36 | + |
| 37 | +# The sources that must be present in each output row |
| 38 | +my %req_sources; |
| 39 | + |
| 40 | +# merge rows with duplicate keys in the same file? |
| 41 | +my $merge_dups = 0; |
| 42 | + |
| 43 | +# report source files? |
| 44 | +my $report_sources = 0; |
| 45 | + |
| 46 | +sub TrimSuffix { |
| 47 | + my $result = $_[0]; |
| 48 | + $result =~ s/\.csv$//; |
| 49 | + return $result; |
| 50 | +} |
| 51 | + |
| 52 | +while ($#ARGV >= 0 && $ARGV[0] =~ /^-/) { |
| 53 | + my $opt = shift @ARGV; |
| 54 | + print STDERR "Unknown option $opt.\n"; |
| 55 | + usage() |
| 56 | +} |
| 57 | + |
| 58 | +my @req_sources = keys %req_sources; |
| 59 | +# print STDERR "Requiring keys to be in these files: ", (join ', ', @req_sources), "\n"; |
| 60 | +my $nreq_sources = 1 + $#req_sources; |
| 61 | + |
| 62 | +# remove leading and trailing whitespace and commas and |
| 63 | +# collapse multiple whitespace into one. |
| 64 | +sub clean { |
| 65 | + my $x = $_[0]; |
| 66 | + chomp $x; |
| 67 | + $x =~ s/\s*$//g; |
| 68 | + $x =~ s/\s\s+$/ /g; |
| 69 | + $x =~ s/^\s*//g; |
| 70 | + $x =~ s/,*$//g; |
| 71 | + $x =~ s/^,*//g; |
| 72 | + return $x; |
| 73 | +} |
| 74 | + |
| 75 | +if ($#ARGV < 0) { |
| 76 | + usage(); |
| 77 | + exit(1); |
| 78 | +} |
| 79 | +my $file = $ARGV[0]; |
| 80 | +open my $fileh, '<', $file; |
| 81 | + |
| 82 | +my %names; |
| 83 | +my @orderings = (); |
| 84 | +my $num_rows = 0; |
| 85 | + |
| 86 | +while (1) { |
| 87 | + my $row = $csv->getline($fileh); |
| 88 | + if (!defined($row)) { last; } |
| 89 | + |
| 90 | + my @ordering = @{$row}; |
| 91 | + # printf "%s\n", join ",", @{$row}; |
| 92 | + |
| 93 | + foreach my $name (@ordering) { |
| 94 | + $name = &clean($name); |
| 95 | + $names{$name} = 1; |
| 96 | + } |
| 97 | + $orderings[$num_rows++] = $row; |
| 98 | +} |
| 99 | + |
| 100 | +# print "number of rows: $num_rows\n"; |
| 101 | + |
| 102 | +my @name_list = sort { |
| 103 | + if (looks_like_number($a) && looks_like_number($b)) { return $a <=> $b } |
| 104 | + if (looks_like_number($a)) { return -1 } |
| 105 | + if (looks_like_number($b)) { return 1 } |
| 106 | + return $a cmp $b |
| 107 | +} (keys %names); |
| 108 | +my $num_names = $#name_list + 1; |
| 109 | + |
| 110 | +# print "number of names: $num_names\n"; |
| 111 | +print "### list of choices ###\n"; |
| 112 | +foreach my $name (@name_list) { |
| 113 | + print "$name\n"; |
| 114 | +} |
| 115 | + |
| 116 | +print "### ballots ###\n"; |
| 117 | +for (my $i = 0; $i < $num_rows; $i++) { |
| 118 | + my @ordering = @{$orderings[$i]}; |
| 119 | + my $first = 1; |
| 120 | + foreach my $name (@name_list) { |
| 121 | + my $rank = "-"; |
| 122 | + print "," unless $first; |
| 123 | + $first = 0; |
| 124 | + for ($j = 0; $j <= $#ordering; $j++) { |
| 125 | + if ($ordering[$j] eq $name) { |
| 126 | + $rank = $j + 1; |
| 127 | + last; |
| 128 | + } |
| 129 | + } |
| 130 | + print $rank; |
| 131 | + } |
| 132 | + print "\n"; |
| 133 | +} |
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